Artificial limb.



T. E. AUVIL.

ARTIFICIAL LIME. APPLICATION FILED J LY 27, 1912.

Patented Oct. 28, 1913.

button being disposed in a recess 19 termed in the casing 4 at a point below the partibutton 18 to move said latch out of the path.

tion 5.

In order that the stump of the limb of the user may be prevented from injury, I

provide a lining 20 formed of leather, felt" or other suitable material, and the upper end of sald cas ng is provlded with an 1nterior hollow ring 21. The ring 21 is formed of resilient material such as rubber, etc., and is provided with a valve 22, by means of whichthe 'same'may be inflated.

The form of artificial limb described by me is adapted to be secured to the stump of the limb of the user by means of a pair of straps 23, which are secured at the front and rear upper end of the casing l and extend to the side of the user andpreferably to a point adjacent. the hip. The ends of said straps are secured to a ring 24, which in turn is secured by a pair of straps 25 to the front and rear portions of a belt 26 adapted to encircle the waist of the user.

When-the user of the artificial limb herein described desires to sit down or to have -the casing 8 disposed at a greater angle to the casing 4- than is allowed by the latch 17 it is only necessary to depress the operating of the bolt 01' keeper 15, whereupon the easing 8 may be bent to the desired point. In order that the joint at the end of the limb may be smooth, I employ webbing 27 con necting the adyacentedges ofthe casings 4 and 8. v

- In Fig. 3, I have shown a casing 28, which is-adapted to be used upon a limb amputated below the knee and said casing is provided with a pair of plates 9, to which an artificial foot is secured. The casing 28 is provided with" a concave partition 29 intermediate its ends and the lower portion of said casing is hollow and provided with a valve 30, by means of which the same may be inflated. The upper end of the casing 28 is provided with a protecting lining 31 similar to the lining 20 of the casing 4, and the upper end thereof is provided with a hollow inflatable ring 32, similar to the ring 21 ing 28 to the limb of the user, I employ hereinbefore described. Insecuring the casstraps 33,.one upon either side, and secure said straps to a ring 34, which is preferably disposed above the knee of the user. One or more straps are employed to connect the ring 3i and the rmg- 21, previously described, which in turn is connected by the straps 25 to the belt 26. I

From the foregoing description it will be seen that I have provided an artificial limb formed of relatively stifi inflatable material, which will absorbthe shocks incident to walking. It will also be seen that the lower portion of the limb will be thrown forward in a natural manner by the spring 14 when the user is taking a step.

hat I claim as new is:

1. An artificial limb comprising a casing,

a calf section p ivotally secured thereto, a

keeper carried by thecalf section and extending above the pivotal point of -sa1d calf section and casing. alatch within said casing and adapted for engagement with saidkeeper for limiting thev bending movement of the limb while in operationand operating means comprising a latch lever and button whereby said limiting latch may be disengaged from said keeper for allowing the limb. to be bent beyond the'limit obtained by engagement of the latch.

2. An artificial limb comprising a'casing' having an open upper end adapted to receive the stump of an amputated limb, bars securedto the sides of said casing, a calf section, bars secured to the sides of said calf section extending thereabove and pivoted to-said firstmentioned bars, a keeper in the connected to the latch.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' TROYE. AUVIL.

Witnesses MURY G. SKINNER, C. E. GRAY.

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